JSFiddle - React, Tailwind, and code Playground

JavaScript

Ext.create('Ext.panel.Panel', {
    title: 'Panel with VerticalTextItem',
    width: 300,
    height: 200,
    lbar: {
        layout: {
            align: 'center'
        },
        items: [{
            xtype: 'text',
            text: 'Sample VerticalTextItem',
            degrees: 90
        }]
    },
    renderTo: Ext.getBody()
});